Tool for center-punching and scribing workpieces

Details Tool for center-punching and scribing workpieces Tool for center-punching and scribing workpieces

1987-05-28

1989-04-25

Watts, Douglas D.

Cutlery

Perforating or indenting implements

Pointed

30360, B26F 100

Patent

active

048234680

ABSTRACT:
A tool which has spacer sleeves displaceable on a center punch and hollow shafts are adjacent to one another is intended for rapidly and precisely finding the center of holes and the longitudinal center of slots and channels, so that center marks and linear scribes can be made. The spacer sleeves and the hollow shafts have different diameters, and the hollow shafts are inserted one into the other in telescopic form. When a hollow shaft is fittingly inserted into hole (5) or slot (5) the center of the former or the longitudinal center of the latter can reliably be found by the center punch for making center marks or linear scribes in the slots. The tool can also be used for producing center marks on shafts and pins.

REFERENCES:
patent: 1541078 (1925-06-01), Sudweeks
patent: 1563574 (1925-12-01), Jensen
patent: 2595347 (1952-05-01), Flemming
patent: 2795052 (1957-06-01), Felenchak
patent: 3791034 (1974-02-01), Carver
patent: 4069586 (1978-01-01), Skelton
patent: 4087912 (1978-05-01), Granone

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